My seedling peach tree still got leaves too. I read an explanation from Olpea in another thread once. This is what he said
“I’ve noticed this is largely dependent on the amount of nitrogen they receive vs. their need. For peach trees, trees heavily fertilized hold their leaves longer, as do younger peach trees generally. I suspect the younger peach trees hold their leaves longer because they are getting more of their N needs met, while older trees require more N and, in many cases, probably aren’t getting as much N, on a “needs” basis.”
In case you were wondering why…